/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.iso.header;

import org.jpos.iso.ISOHeader;
import org.jpos.iso.ISOUtil;
import org.jpos.util.Loggeable;

import java.io.PrintStream;

/**
 * @author <a href="mailto:Eoin.Flood@orbiscom.com">Eoin Flood</a>
 * @author <a href="mailto:apr@cs.com.uy">Alejandro P. Revilla</a>
 */
public class BaseHeader implements ISOHeader, Loggeable {
	/**
	 *
	 */
	private static final long serialVersionUID = 8674535007934468935L;
	protected byte[] header;
	transient boolean asciiEncoding = false;

	/**
	 * Default Constructor.
	 * Used by Class.forName.newInstance(...);
	 */
	public BaseHeader() {
		header = null;
	}

	public BaseHeader(byte[] header) {
		unpack(header);
	}

	public Object clone() {
		try {
			BaseHeader h = (BaseHeader) super.clone();
			if (this.header != null)
				h.header = this.header.clone();
			return h;
		} catch (CloneNotSupportedException e) {
			throw new InternalError();
		}
	}

	public byte[] pack() {
		return header != null ? header.clone() : null;
	}

	public int unpack(byte[] header) {
		if (header != null) {
			this.header = header.clone();
			return header.length;
		} else {
			this.header = null;
		}
		return 0;
	}

	public int getLength() {
		return header != null ? header.length : 0;
	}

	public void setDestination(String dst) {
	}

	public void setSource(String src) {
	}

	public String getDestination() {
		return null;
	}

	public String getSource() {
		return null;
	}

	public void swapDirection() {
	}

	public void dump(PrintStream p, String indent) {
		if (header != null) {
			p.println(
					indent
							+ "<header>" + ISOUtil.hexString(header) + "</header>"
			);
		}
	}

	public void setAsciiEncoding(boolean asciiEncoding) {
		this.asciiEncoding = asciiEncoding;
	}

	public boolean isAsciiEncoding() {
		return asciiEncoding;
	}
}
